minFreeSpace argument allows size like 10GiB

weed/util/bytes_test.go

@@ -0,0 +1,85 @@
+package util
+
+import "testing"
+
+func TestParseMinFreeSpace(t *testing.T) {
+	tests := []struct {
+		in    string
+		ok    bool
+		value float32
+	}{
+		{in: "42", ok: true, value: 42},
+		{in: "-1", ok: false, value: 0},
+		{in: "101", ok: false, value: 0},
+		{in: "100B", ok: false, value: 0},
+		{in: "100Ki", ok: true, value: 100 * 1024},
+		{in: "100GiB", ok: true, value: 100 * 1024 * 1024 * 1024},
+		{in: "42M", ok: true, value: 42 * 1000 * 1000},
+	}
+
+	for _, p := range tests {
+		got, err := ParseMinFreeSpace(p.in)
+		if p.ok != (err == nil) {
+			t.Errorf("failed to test %v", p.in)
+		}
+		if p.ok && err == nil && got != p.value {
+			t.Errorf("failed to test %v", p.in)
+		}
+	}
+}
+
+func TestByteParsing(t *testing.T) {
+	tests := []struct {
+		in  string
+		exp uint64
+	}{
+		{"42", 42},
+		{"42MB", 42000000},
+		{"42MiB", 44040192},
+		{"42mb", 42000000},
+		{"42mib", 44040192},
+		{"42MIB", 44040192},
+		{"42 MB", 42000000},
+		{"42 MiB", 44040192},
+		{"42 mb", 42000000},
+		{"42 mib", 44040192},
+		{"42 MIB", 44040192},
+		{"42.5MB", 42500000},
+		{"42.5MiB", 44564480},
+		{"42.5 MB", 42500000},
+		{"42.5 MiB", 44564480},
+		// No need to say B
+		{"42M", 42000000},
+		{"42Mi", 44040192},
+		{"42m", 42000000},
+		{"42mi", 44040192},
+		{"42MI", 44040192},
+		{"42 M", 42000000},
+		{"42 Mi", 44040192},
+		{"42 m", 42000000},
+		{"42 mi", 44040192},
+		{"42 MI", 44040192},
+		{"42.5M", 42500000},
+		{"42.5Mi", 44564480},
+		{"42.5 M", 42500000},
+		{"42.5 Mi", 44564480},
+		// Bug #42
+		{"1,005.03 MB", 1005030000},
+		// Large testing, breaks when too much larger than
+		// this.
+		{"12.5 EB", uint64(12.5 * float64(EByte))},
+		{"12.5 E", uint64(12.5 * float64(EByte))},
+		{"12.5 EiB", uint64(12.5 * float64(EiByte))},
+	}
+
+	for _, p := range tests {
+		got, err := ParseBytes(p.in)
+		if err != nil {
+			t.Errorf("Couldn't parse %v: %v", p.in, err)
+		}
+		if got != p.exp {
+			t.Errorf("Expected %v for %v, got %v",
+				p.exp, p.in, got)
+		}
+	}
+}